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4988789 = 13383753
BaseRepresentation
bin10011000001111101110101
3100101110022222
4103001331311
52234120124
6254532125
760255401
oct23017565
910343288
104988789
1128a8173
121807045
131058960
1493c101
1568825e
hex4c1f75

4988789 has 4 divisors (see below), whose sum is σ = 5372556. Its totient is φ = 4605024.

The previous prime is 4988761. The next prime is 4988831. The reversal of 4988789 is 9878894.

4988789 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 819025 + 4169764 = 905^2 + 2042^2 .

It is a cyclic number.

It is not a de Polignac number, because 4988789 - 216 = 4923253 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4988789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4988719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191864 + ... + 191889.

It is an arithmetic number, because the mean of its divisors is an integer number (1343139).

Almost surely, 24988789 is an apocalyptic number.

It is an amenable number.

4988789 is a deficient number, since it is larger than the sum of its proper divisors (383767).

4988789 is a wasteful number, since it uses less digits than its factorization.

4988789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383766.

The product of its digits is 1161216, while the sum is 53.

The square root of 4988789 is about 2233.5597148946. The cubic root of 4988789 is about 170.8696954258.

The spelling of 4988789 in words is "four million, nine hundred eighty-eight thousand, seven hundred eighty-nine".

Divisors: 1 13 383753 4988789